Most of us were probably helped or not helped because of our family's financial or personal circumstances--there really wasn't much of a choice to be made about sustaining us into adulthood. Most of us in this forum seem to be in much better circumstances and we have more of a decision to make. We could be helping our children with down payments, grad school, cars, etc., but we don't, and although my parents paid for my very cheap college tuition, further reduced greatly by my working during all four years of college, they would have laughed out loud at the idea of helping with any of those other things. (We paid for all undergrad college costs--even though they both worked all four years--and also for weddings because we wanted to throw them each a great party, for which they will always be most grateful).
But DD is married to an only child. His parents did give him his half of the kids' down payment while DD paid her own half. They are also very generous financially in other ways. DD's FIL says they would rather pass it on while he is alive. I can't fault that in him. Who knows if DD's DH would be any different--he's a great guy.